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/* Generated By:JavaCC: Do not edit this line. QueryParser.java */
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package org.apache.lucene.queryParser.surround.parser;
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import java.util.ArrayList;
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import java.io.StringReader;
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import org.apache.lucene.analysis.TokenStream;
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import org.apache.lucene.queryParser.surround.query.SrndQuery;
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import org.apache.lucene.queryParser.surround.query.FieldsQuery;
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import org.apache.lucene.queryParser.surround.query.OrQuery;
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import org.apache.lucene.queryParser.surround.query.AndQuery;
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import org.apache.lucene.queryParser.surround.query.NotQuery;
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import org.apache.lucene.queryParser.surround.query.DistanceQuery;
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import org.apache.lucene.queryParser.surround.query.SrndTermQuery;
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import org.apache.lucene.queryParser.surround.query.SrndPrefixQuery;
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import org.apache.lucene.queryParser.surround.query.SrndTruncQuery;
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* This class is generated by JavaCC. The only method that clients should need
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* to call is <a href="#parse">parse()</a>.
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public class QueryParser implements QueryParserConstants {
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final int minimumPrefixLength = 3;
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final int minimumCharsInTrunc = 3;
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final String truncationErrorMessage = "Too unrestrictive truncation: ";
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final String boostErrorMessage = "Cannot handle boost value: ";
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/* CHECKME: These should be the same as for the tokenizer. How? */
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final char truncator = '*';
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final char anyChar = '?';
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final char quote = '\"';
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final char fieldOperator = ':';
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final char comma = ','; /* prefix list separator */
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final char carat = '^'; /* weight operator */
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static public SrndQuery parse(String query) throws ParseException {
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QueryParser parser = new QueryParser();
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return parser.parse2(query);
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public QueryParser() {
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this(new FastCharStream(new StringReader("")));
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public SrndQuery parse2(String query) throws ParseException {
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ReInit(new FastCharStream(new StringReader(query)));
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return TopSrndQuery();
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} catch (TokenMgrError tme) {
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throw new ParseException(tme.getMessage());
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protected SrndQuery getFieldsQuery(
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SrndQuery q, ArrayList<String> fieldNames) {
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/* FIXME: check acceptable subquery: at least one subquery should not be
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return new FieldsQuery(q, fieldNames, fieldOperator);
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protected SrndQuery getOrQuery(List<SrndQuery> queries, boolean infix, Token orToken) {
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return new OrQuery(queries, infix, orToken.image);
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protected SrndQuery getAndQuery(List<SrndQuery> queries, boolean infix, Token andToken) {
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return new AndQuery( queries, infix, andToken.image);
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protected SrndQuery getNotQuery(List<SrndQuery> queries, Token notToken) {
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return new NotQuery( queries, notToken.image);
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protected static int getOpDistance(String distanceOp) {
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/* W, 2W, 3W etc -> 1, 2 3, etc. Same for N, 2N ... */
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return distanceOp.length() == 1
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: Integer.parseInt( distanceOp.substring( 0, distanceOp.length() - 1));
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protected static void checkDistanceSubQueries(DistanceQuery distq, String opName)
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throws ParseException {
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String m = distq.distanceSubQueryNotAllowed();
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throw new ParseException("Operator " + opName + ": " + m);
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protected SrndQuery getDistanceQuery(
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List<SrndQuery> queries,
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boolean ordered) throws ParseException {
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DistanceQuery dq = new DistanceQuery(queries,
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getOpDistance(dToken.image),
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checkDistanceSubQueries(dq, dToken.image);
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protected SrndQuery getTermQuery(
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String term, boolean quoted) {
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return new SrndTermQuery(term, quoted);
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protected boolean allowedSuffix(String suffixed) {
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return (suffixed.length() - 1) >= minimumPrefixLength;
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protected SrndQuery getPrefixQuery(
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String prefix, boolean quoted) {
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return new SrndPrefixQuery(prefix, quoted, truncator);
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protected boolean allowedTruncation(String truncated) {
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/* At least 3 normal characters needed. */
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int nrNormalChars = 0;
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for (int i = 0; i < truncated.length(); i++) {
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char c = truncated.charAt(i);
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if ((c != truncator) && (c != anyChar)) {
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return nrNormalChars >= minimumCharsInTrunc;
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protected SrndQuery getTruncQuery(String truncated) {
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return new SrndTruncQuery(truncated, truncator, anyChar);
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final public SrndQuery TopSrndQuery() throws ParseException {
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{if (true) return q;}
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throw new Error("Missing return statement in function");
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final public SrndQuery FieldsQuery() throws ParseException {
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ArrayList<String> fieldNames;
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fieldNames = OptionalFields();
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{if (true) return (fieldNames == null) ? q : getFieldsQuery(q, fieldNames);}
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throw new Error("Missing return statement in function");
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final public ArrayList<String> OptionalFields() throws ParseException {
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ArrayList<String> fieldNames = null;
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fieldName = jj_consume_token(TERM);
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jj_consume_token(COLON);
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if (fieldNames == null) {
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fieldNames = new ArrayList<String>();
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fieldNames.add(fieldName.image);
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{if (true) return fieldNames;}
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throw new Error("Missing return statement in function");
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final public SrndQuery OrQuery() throws ParseException {
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ArrayList<SrndQuery> queries = null;
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switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
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oprt = jj_consume_token(OR);
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/* keep only last used operator */
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if (queries == null) {
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queries = new ArrayList<SrndQuery>();
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{if (true) return (queries == null) ? q : getOrQuery(queries, true /* infix */, oprt);}
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throw new Error("Missing return statement in function");
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final public SrndQuery AndQuery() throws ParseException {
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ArrayList<SrndQuery> queries = null;
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switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
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oprt = jj_consume_token(AND);
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/* keep only last used operator */
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if (queries == null) {
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queries = new ArrayList<SrndQuery>();
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{if (true) return (queries == null) ? q : getAndQuery(queries, true /* infix */, oprt);}
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throw new Error("Missing return statement in function");
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final public SrndQuery NotQuery() throws ParseException {
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ArrayList<SrndQuery> queries = null;
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switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
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oprt = jj_consume_token(NOT);
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/* keep only last used operator */
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if (queries == null) {
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queries = new ArrayList<SrndQuery>();
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{if (true) return (queries == null) ? q : getNotQuery(queries, oprt);}
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throw new Error("Missing return statement in function");
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final public SrndQuery NQuery() throws ParseException {
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ArrayList<SrndQuery> queries;
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switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
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dt = jj_consume_token(N);
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queries = new ArrayList<SrndQuery>();
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queries.add(q); /* left associative */
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q = getDistanceQuery(queries, true /* infix */, dt, false /* not ordered */);
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{if (true) return q;}
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throw new Error("Missing return statement in function");
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final public SrndQuery WQuery() throws ParseException {
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ArrayList<SrndQuery> queries;
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switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
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wt = jj_consume_token(W);
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queries = new ArrayList<SrndQuery>();
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queries.add(q); /* left associative */
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q = getDistanceQuery(queries, true /* infix */, wt, true /* ordered */);
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{if (true) return q;}
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throw new Error("Missing return statement in function");
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final public SrndQuery PrimaryQuery() throws ParseException {
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/* bracketed weighted query or weighted term */
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switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
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jj_consume_token(LPAREN);
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jj_consume_token(RPAREN);
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q = PrefixOperatorQuery();
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jj_consume_token(-1);
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throw new ParseException();
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{if (true) return q;}
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throw new Error("Missing return statement in function");
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final public SrndQuery PrefixOperatorQuery() throws ParseException {
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List<SrndQuery> queries;
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switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
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oprt = jj_consume_token(OR);
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queries = FieldsQueryList();
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{if (true) return getOrQuery(queries, false /* not infix */, oprt);}
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oprt = jj_consume_token(AND);
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queries = FieldsQueryList();
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{if (true) return getAndQuery(queries, false /* not infix */, oprt);}
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oprt = jj_consume_token(N);
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queries = FieldsQueryList();
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{if (true) return getDistanceQuery(queries, false /* not infix */, oprt, false /* not ordered */);}
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oprt = jj_consume_token(W);
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queries = FieldsQueryList();
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{if (true) return getDistanceQuery(queries, false /* not infix */, oprt, true /* ordered */);}
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jj_consume_token(-1);
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throw new ParseException();
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throw new Error("Missing return statement in function");
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final public List<SrndQuery> FieldsQueryList() throws ParseException {
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ArrayList<SrndQuery> queries = new ArrayList<SrndQuery>();
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jj_consume_token(LPAREN);
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jj_consume_token(COMMA);
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switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
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jj_consume_token(RPAREN);
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{if (true) return queries;}
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throw new Error("Missing return statement in function");
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final public SrndQuery SimpleTerm() throws ParseException {
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switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
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term = jj_consume_token(TERM);
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{if (true) return getTermQuery(term.image, false /* not quoted */);}
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term = jj_consume_token(QUOTED);
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{if (true) return getTermQuery(term.image.substring(1, term.image.length()-1), true /* quoted */);}
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term = jj_consume_token(SUFFIXTERM);
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if (! allowedSuffix(term.image)) {
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{if (true) throw new ParseException(truncationErrorMessage + term.image);}
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{if (true) return getPrefixQuery(term.image.substring(0, term.image.length()-1), false /* not quoted */);}
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term = jj_consume_token(TRUNCTERM);
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/* with at least one * or ? */
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if (! allowedTruncation(term.image)) {
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{if (true) throw new ParseException(truncationErrorMessage + term.image);}
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{if (true) return getTruncQuery(term.image);}
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term = jj_consume_token(TRUNCQUOTED);
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if ((term.image.length() - 3) < minimumPrefixLength) {
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{if (true) throw new ParseException(truncationErrorMessage + term.image);}
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{if (true) return getPrefixQuery(term.image.substring(1, term.image.length()-2), true /* quoted */);}
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jj_consume_token(-1);
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throw new ParseException();
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throw new Error("Missing return statement in function");
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final public void OptionalWeights(SrndQuery q) throws ParseException {
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switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
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jj_consume_token(CARAT);
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weight = jj_consume_token(NUMBER);
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f = Float.valueOf(weight.image).floatValue();
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} catch (Exception floatExc) {
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{if (true) throw new ParseException(boostErrorMessage + weight.image + " (" + floatExc + ")");}
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{if (true) throw new ParseException(boostErrorMessage + weight.image);}
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q.setWeight(f * q.getWeight()); /* left associative, fwiw */
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private boolean jj_2_1(int xla) {
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jj_la = xla; jj_lastpos = jj_scanpos = token;
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try { return !jj_3_1(); }
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catch(LookaheadSuccess ls) { return true; }
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finally { jj_save(0, xla); }
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private boolean jj_3_1() {
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if (jj_scan_token(TERM)) return true;
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if (jj_scan_token(COLON)) return true;
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/** Generated Token Manager. */
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public QueryParserTokenManager token_source;
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/** Current token. */
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private Token jj_scanpos, jj_lastpos;
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final private int[] jj_la1 = new int[10];
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static private int[] jj_la1_0;
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private static void jj_la1_init_0() {
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jj_la1_0 = new int[] {0x100,0x200,0x400,0x1000,0x800,0x7c3b00,0x1b00,0x8000,0x7c0000,0x20000,};
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final private JJCalls[] jj_2_rtns = new JJCalls[1];
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private boolean jj_rescan = false;
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private int jj_gc = 0;
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/** Constructor with user supplied CharStream. */
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public QueryParser(CharStream stream) {
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token_source = new QueryParserTokenManager(stream);
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for (int i = 0; i < 10; i++) jj_la1[i] = -1;
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for (int i = 0; i < jj_2_rtns.length; i++) jj_2_rtns[i] = new JJCalls();
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public void ReInit(CharStream stream) {
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token_source.ReInit(stream);
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for (int i = 0; i < 10; i++) jj_la1[i] = -1;
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for (int i = 0; i < jj_2_rtns.length; i++) jj_2_rtns[i] = new JJCalls();
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/** Constructor with generated Token Manager. */
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public QueryParser(QueryParserTokenManager tm) {
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for (int i = 0; i < 10; i++) jj_la1[i] = -1;
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for (int i = 0; i < jj_2_rtns.length; i++) jj_2_rtns[i] = new JJCalls();
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public void ReInit(QueryParserTokenManager tm) {
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for (int i = 0; i < 10; i++) jj_la1[i] = -1;
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for (int i = 0; i < jj_2_rtns.length; i++) jj_2_rtns[i] = new JJCalls();
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private Token jj_consume_token(int kind) throws ParseException {
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if ((oldToken = token).next != null) token = token.next;
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else token = token.next = token_source.getNextToken();
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if (token.kind == kind) {
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for (int i = 0; i < jj_2_rtns.length; i++) {
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JJCalls c = jj_2_rtns[i];
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if (c.gen < jj_gen) c.first = null;
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throw generateParseException();
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static private final class LookaheadSuccess extends java.lang.Error { }
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final private LookaheadSuccess jj_ls = new LookaheadSuccess();
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private boolean jj_scan_token(int kind) {
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if (jj_scanpos == jj_lastpos) {
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if (jj_scanpos.next == null) {
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jj_lastpos = jj_scanpos = jj_scanpos.next = token_source.getNextToken();
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jj_lastpos = jj_scanpos = jj_scanpos.next;
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jj_scanpos = jj_scanpos.next;
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int i = 0; Token tok = token;
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while (tok != null && tok != jj_scanpos) { i++; tok = tok.next; }
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if (tok != null) jj_add_error_token(kind, i);
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if (jj_scanpos.kind != kind) return true;
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if (jj_la == 0 && jj_scanpos == jj_lastpos) throw jj_ls;
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/** Get the next Token. */
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final public Token getNextToken() {
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if (token.next != null) token = token.next;
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else token = token.next = token_source.getNextToken();
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/** Get the specific Token. */
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final public Token getToken(int index) {
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for (int i = 0; i < index; i++) {
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if (t.next != null) t = t.next;
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else t = t.next = token_source.getNextToken();
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private int jj_ntk() {
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if ((jj_nt=token.next) == null)
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return (jj_ntk = (token.next=token_source.getNextToken()).kind);
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return (jj_ntk = jj_nt.kind);
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private java.util.List<int[]> jj_expentries = new java.util.ArrayList<int[]>();
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private int[] jj_expentry;
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private int jj_kind = -1;
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private int[] jj_lasttokens = new int[100];
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private int jj_endpos;
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private void jj_add_error_token(int kind, int pos) {
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if (pos >= 100) return;
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if (pos == jj_endpos + 1) {
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jj_lasttokens[jj_endpos++] = kind;
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} else if (jj_endpos != 0) {
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jj_expentry = new int[jj_endpos];
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for (int i = 0; i < jj_endpos; i++) {
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jj_expentry[i] = jj_lasttokens[i];
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jj_entries_loop: for (java.util.Iterator it = jj_expentries.iterator(); it.hasNext();) {
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int[] oldentry = (int[])(it.next());
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if (oldentry.length == jj_expentry.length) {
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for (int i = 0; i < jj_expentry.length; i++) {
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if (oldentry[i] != jj_expentry[i]) {
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continue jj_entries_loop;
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jj_expentries.add(jj_expentry);
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break jj_entries_loop;
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if (pos != 0) jj_lasttokens[(jj_endpos = pos) - 1] = kind;
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/** Generate ParseException. */
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public ParseException generateParseException() {
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jj_expentries.clear();
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boolean[] la1tokens = new boolean[24];
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la1tokens[jj_kind] = true;
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for (int i = 0; i < 10; i++) {
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if (jj_la1[i] == jj_gen) {
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for (int j = 0; j < 32; j++) {
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if ((jj_la1_0[i] & (1<<j)) != 0) {
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for (int i = 0; i < 24; i++) {
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jj_expentry = new int[1];
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jj_expentries.add(jj_expentry);
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jj_add_error_token(0, 0);
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int[][] exptokseq = new int[jj_expentries.size()][];
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for (int i = 0; i < jj_expentries.size(); i++) {
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exptokseq[i] = jj_expentries.get(i);
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return new ParseException(token, exptokseq, tokenImage);
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/** Enable tracing. */
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final public void enable_tracing() {
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/** Disable tracing. */
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final public void disable_tracing() {
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private void jj_rescan_token() {
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for (int i = 0; i < 1; i++) {
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JJCalls p = jj_2_rtns[i];
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if (p.gen > jj_gen) {
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jj_la = p.arg; jj_lastpos = jj_scanpos = p.first;
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case 0: jj_3_1(); break;
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} catch(LookaheadSuccess ls) { }
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private void jj_save(int index, int xla) {
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JJCalls p = jj_2_rtns[index];
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while (p.gen > jj_gen) {
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if (p.next == null) { p = p.next = new JJCalls(); break; }
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p.gen = jj_gen + xla - jj_la; p.first = token; p.arg = xla;
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static final class JJCalls {